What you have to prove
Involuntary weight loss due to any digestive disorder despite continuing treatment as prescribed, with BMI of less than 17.50 calculated on at least 2 evaluations at least 60 days apart within a 6-month period.
Medical evidence SSA expects
Serial weight measurements, BMI calculations, GI specialist records identifying the underlying disorder, and nutrition support records.
Common misconceptions
Eating disorders aren't evaluated under this listing — they go under 12.13 (mental disorders). The weight loss must trace to a physical digestive condition.
Didn't meet the listing? You can still qualify via a Medical-Vocational
Allowance — SSA's determination that your residual functional capacity, combined with
your age, education, and work history, leaves no jobs you can do. See our
appeals guide for what to do after an initial denial.